SPHEROIDAL ZINC OXIDE NANOPARTICLES SYNTHESIZED BY SEMICONTINUOUS PRECIPITATION METHOD AT LOW TEMPERATURES

  • S. López-Cuenca
  • J. Aguilar-Martínez
  • M. Rabelero-Velasco
  • F.J. Hernández-Ibarra
  • L.C. López-Ureta
  • M.A. Pedroza-Toscano
Keywords: ZnO nanoparticles, static analysis, precipitation, antibacterial

Abstract

The synthesis of spheroidal high purity zinc oxide (ZnO) and crystal size in a range of 20 and 45 nm, using the semicontinuous precipitation method is reported in this work. The ZnO nanoparticles (ZnO-NPs) were made by hydrolysis of Zn(NO3)2 with NaOH aqueous solution and precipitation at temperatures below 90 °C. The ultrafine powder of ZnO was analyzed by X-ray diffraction (XRD), where the formation of ZnO nanoparticles and hexagonal crystal structure (wurtzite) was corroborated. Spheroidal nanoparticles were observed by transmission electron microscopy (TEM) and energy dispersive aX-ray (EDX) spectra confirming the presence of high purity ZnO-NPs. A factorial experimental model 23 was performed to grant statistical validity of the experimental procedure. The antibacterial activity of ZnO-NPs was tested by the agar disk diffusion method, against S. aureus and E. coli.

Published
2019-06-09
How to Cite
López-Cuenca, S., Aguilar-Martínez, J., Rabelero-Velasco, M., Hernández-Ibarra, F., López-Ureta, L., & Pedroza-Toscano, M. (2019). SPHEROIDAL ZINC OXIDE NANOPARTICLES SYNTHESIZED BY SEMICONTINUOUS PRECIPITATION METHOD AT LOW TEMPERATURES. Revista Mexicana De Ingeniería Química, 18(3), 1179-1187. Retrieved from http://rmiq.org/ojs311/index.php/rmiq/article/view/333